// Namespace nesting

#include <iostream>
using namespace std;


namespace ns1 {
	int value = 10;
	namespace ns2 {
		int value = 9;
		namespace ns3 {
			int value = 8;
		}
	}
}



int main( void ){
	namespace ns_four = ns1::ns2::ns3;
	cout << "value = " << ns_four::value << endl;

	return 0;
}




